{"product_id":"renthal-437u-520-38gbsi-ultralight-rear-sprocket-yamaha-moto-house-mx","title":"Renthal Ultralight Rear Sprocket (Silver, 38T) 437U-520-38GBSI - Yamaha Raptor 700R \/ YFZ450 2004-2026","description":"\u003ch1\u003e\u003cstrong\u003eRenthal Ultralight Rear Sprocket (Silver, 38T) 437U-520-38GBSI - Yamaha Raptor 700R \/ YFZ450 2004-2026\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eMaximize your power transfer and reduce unsprung weight on your quad with the \u003cstrong\u003eRenthal Ultralight Rear Sprocket\u003c\/strong\u003e. Engineered specifically for high-performance ATV riding, this sprocket delivers professional-grade durability without adding unnecessary mass to your rear axle.\u003c\/p\u003e\n\u003cp\u003eManufactured from a specially enhanced 7075-T6 aluminum alloy, these sprockets are precision CNC-machined to tight tolerances. Featuring self-cleaning mud grooves and a computer-aided ultra-light design, they drop weight significantly compared to stock steel components while maintaining exceptional tensile strength.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Renthal Ultralight Rear Sprocket\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCNC-machined from a specially enhanced 7075-T6 aluminum alloy for ultimate strength.\u003c\/li\u003e\n\u003cli\u003eIntegrated self-cleaning mud grooves at each tooth to help increase wear resistance.\u003c\/li\u003e\n\u003cli\u003eUltralight design makes them 66 percent lighter than steel without sacrificing durability.\u003c\/li\u003e\n\u003cli\u003eEngineered specifically for a 520 chain size to ensure optimal power transfer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your quad before finalizing your purchase.\u003c\/p\u003e\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eVehicle Brand\u003c\/th\u003e\n\u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2016\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYFZ450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYFM700R Raptor 700R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008-2013\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYFM250 Raptor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYFZ450R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2011\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYFZ450X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYFZ 450 X 4x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eRaptor 700R 4x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: Is this sprocket significantly lighter than a steel stock unit?\u003c\/b\u003e\u003cbr\u003eA: Yes, the ultralight aluminum design is 66 percent lighter than standard steel sprockets to reduce rotating mass.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What chain size does this sprocket require?\u003c\/b\u003e\u003cbr\u003eA: This sprocket is designed to fit a 520 chain size.\u003c\/p\u003e\n\u003ch3\u003eExpert Pro-Tip\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e Always inspect your axle carrier bearings and chain sliders when swapping out sprockets on an ATV. Worn chain sliders or a loose carrier will cause rapid, uneven tooth wear on a brand-new aluminum sprocket.\u003c\/p\u003e\n\u003ch3\u003eRecommended Pairings:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-chains\"\u003eMX Chains\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yfm700r-raptor-performance-motocross-sport-quads-atv-moto-house-mx\"\u003eYamaha Raptor 700R Quad Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-motorcycle-tools\"\u003eMotorcycle Tools \u0026amp; Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. We pride ourselves on great customer service, and every item ships FAST - straight to your door.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions\u003c\/strong\u003e - Your premier powersports source with great customer service and lightning-fast shipping straight to your door.\u003c\/i\u003e\u003c\/p\u003e","brand":"RENTHAL","offers":[{"title":"Default Title","offer_id":42622536056915,"sku":"437U-520-38GBSI","price":94.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/renthal-rear-ultralight-sprocket-silver-grooved-38t-part-number-437u-520-38gbsi-915197.jpg?v=1744691959","url":"https:\/\/motohousemx.com\/products\/renthal-437u-520-38gbsi-ultralight-rear-sprocket-yamaha-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}